Next Article in Journal
Arctic Ocean Sea Level Record from the Complete Radar Altimetry Era: 1991–2018
Previous Article in Journal
Regional Vicarious Calibration of the SWIR-Based Atmospheric Correction Approach for MODIS-Aqua Measurements of Highly Turbid Inland Water
Previous Article in Special Issue
Temporal Variability and Geographical Origins of Airborne Pollen Grains Concentrations from 2015 to 2018 at Saclay, France
Open AccessArticle

Variability and Geographical Origin of Five Years Airborne Fungal Spore Concentrations Measured at Saclay, France from 2014 to 2018

1
Laboratoire des Sciences du Climat et de l’Environnement, LSCE/IPSL, Unité mixte de recherche CEA-CNRS-UVSQ, 91191 Gif sur Yvette, France
2
Laboratoire d’Aérologie, Université Toulouse III, CNRS, UPS, 31400 Toulouse, France
3
School of Chemistry and Environmental Research Institute, University College Cork, T12 YN60 Cork, Ireland
4
Technological University of Dublin, D08NF82 Dublin, Ireland
5
Dept. Biologia Animal, Biologia Vegetal i Ecologia, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
6
Institut de Ciència i Tecnologia Ambientals (ICTA-UAB), Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Spain
7
Réseau National de Surveillance Aérobiologique, 69690 Brussieu, France
*
Author to whom correspondence should be addressed.
Remote Sens. 2019, 11(14), 1671; https://doi.org/10.3390/rs11141671
Received: 30 May 2019 / Revised: 2 July 2019 / Accepted: 9 July 2019 / Published: 13 July 2019
(This article belongs to the Special Issue Atmospheric Pollen/Fungus Remote Sensing)
Airborne fungal spores (AFS) represent the major fraction of primary biological aerosol particles (PBAPs), and they are studied worldwide largely due to their important role within the Earth system. They have an impact on climate and human health, and they contribute to the propagation of diseases. As their presence in the air depends largely on studied ecosystems, a spore trap was used to monitor their atmospheric concentrations from 2014 to December 2018 in Saclay, a suburban area in the megacity of Paris. The main objective of this work was: (1) to understand the atmospheric variability of AFS in relation to different variables such as meteorological factors, agricultural practice, and (2) to identify their geographical origin by using a source receptor model. During our period of observation, 30 taxa have been identified under a light microscope. In order of importance, Ascospores, Cladosporium, Basidiospores, Tilletiopsis, Alternaria were found to be the most abundant types respectively (50.8%, 33.6%, 7.6%, 1.8%, and 1.3%) accounting for 95% of the atmospheric concentrations. We observed a general decrease associated with a strong interannual variability. A bimodal seasonal cycle was identified with a first maximum in July and a second in October. The main parameters driving the atmospheric concentration are temperature and precipitation. The daily variability is strongly activated by successive periods of hot weather and rainfall, multiplying the concentration by a factor of 1000 in less than 12 hours. Results from the source receptor model ZeFir point out unambiguous different origins of AFS due to specific sources impacting the observation site. Our study also indicated that a hydrological stress has a direct effect on the daily concentrations. This last point should be taken into account for every stressed ecosystem studied in a global warming context. This is particularly important for Mediterranean areas where water is a key control of the growth and dispersion of fungal spores. View Full-Text
Keywords: Airborne fungal spores; meteorological factors; source receptor model; pathogen transport; polluted environments; hydrological stress Airborne fungal spores; meteorological factors; source receptor model; pathogen transport; polluted environments; hydrological stress
Show Figures

Graphical abstract

MDPI and ACS Style

Sarda-Estève, R.; Baisnée, D.; Guinot, B.; Sodeau, J.; O’Connor, D.; Belmonte, J.; Besancenot, J.-P.; Petit, J.-E.; Thibaudon, M.; Oliver, G.; Sindt, C.; Gros, V. Variability and Geographical Origin of Five Years Airborne Fungal Spore Concentrations Measured at Saclay, France from 2014 to 2018. Remote Sens. 2019, 11, 1671.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop